8Pc Super Strong Neodymium Magnet 1.26" x 1/8" Discs, The World’s Strongest & Most Powerful Rare Earth Magnets by Applied Magnets

Earlier this year, I was cosplaying a character with horns that come out of the sides of her head (Albedo, from Overlord), right above the ear, rather than sit on top of the head like most horns do, and come around to rest in front of the forehead. Since they're somewhat odd horns, I found myself in a bit of a predicament in regards to mounting them on my head, not only due to their location, but because of the weight my horns ended up being (after several incarnations, the lowest I got was about 3.5 ounces each; if you can manage really light foam horns, it's a lot easier!).After some researching and trial-and-error, I ended up realizing I needed really, REALLY strong magnets to make this work.Neodymium magnets really are something! Using all 10, the power of these babies can work even through my hand (so if I put one in my palm and let the other 9 attract to it through the back of my hand, the pull is strong enough to hold), so they're pretty powerful. Now, I will say that they're most powerful in groups, so the more weight you want these to hold up, the more magnets need to be stacked together.For my horns, I ended up putting 1 magnet in the base of each horn and then putting a matching magnet inside some thermoplastic attached to a headband that I wore underneath my wig. With four total magnets, my horns were really secure! I could move my head around freely without fear of the horns flying off, and because they're magnets, taking the horns back off at the end of each day was really easy.One trouble I had in regards to using these to mount was that due to my horns having so much in the front, the magnets weren't strong enough to fight against gravity and keep the points of the horns sitting where they needed to. The magnets held them up, of course, but because they're smooth, the pull of gravity was able to shift the horns around so the points kept sinking downward. To counteract this, I added in a thin metal headband wrapped in black thread (to blend in with my wig) that offered enough resistance to the pull of gravity to keep the horns where I put them when the magnets attracted. I think if you could somehow make it so there's enough resistance so two magnets can't turn around on one another you can get around this issue in the event whatever you're mounting has to fight against the pull of gravity.The only other issue was that I had to resort to using a rubberized glue substance called flex-seal to actually adhere the magnets into my horns. Most other glues didn't get enough of a grip and the magnets ripped themselves free of my horns when I went to remove them from the magnets in the headband. The flex-seal was definitely able to grip the most effectively of everything I tried. The alternative would be to actually encase them in something, like I did with the thermoplastic. I didn't encase the magnets in the stuff I made my horns out of (papermache and drywall joint compound) because on top of this stuff being pretty fragile, I also didn't want to lose any of the magnet's power, since it already had to attract to its base through a wig and the more stuff a magnet has to work through to, the less powerful the connection is.Personally, I didn't experience any breakage of the magnets themselves, but they are thin enough that I can see them being fragile if you're reckless and let them attract something aggressively from a distance or drop them on the ground.As for the issue of two magnets getting stuck together without a barrier, there is hope! I found that taking stuck magnets in my palm and sliding them apart was FAR more effective than trying to pry one up and off. You just gotta go slow and stay constant to break the connection and then not let them attract back together. I've had magnets accidentally come together several times while working on my horns and I was able to pry them free each time. Trying to pry them free like you're opening a book will probably result in you ripping off a fingernail or breaking the magnets, if you decide to shove something metal in between them to use like a lever.When trying to figure out the poles, I kept one inside my fist to protect it from snapping up a magnet. They're strong enough that you can feel the pull even through your hand.For the price, I think you get a lot of magnets and that they're pretty great! They're a pretty good size, not too thin or too thick. They worked pretty great for my needs as a cosplayer, so I recommend! Just be sure to test whatever you're doing; wiggle around to see if things succumb to gravity, test how much pull is needed to pry the magnets off things, see if your adhesion method was strong enough to combat the magnets own magnetic pull, etc.

Update at bottom..,.Very strong. Using to change water property. You can read reviews about using magnets for laundry and putt on water pipes. ( in fact this company sells them for that purpose).Some people swear by it and others say it's fake. Fact: magnets do change the property of water. BUT If this actually makes clothes come out cleaner is hard to figure out. But, I love Amazon and bought a set of the ones specifically for a washing machine to try. They were very pricy and I returned them because the benefit didn't justify the price. ( Note... I found the magnets didn't really make a change in my laundry that I could tell, but made a big difference in my dish washer. We have super hard water here in N Dallas. Reviews say that you can use way less detergent because magnets change the property of water and make the water better at cleaning/ pulling off dirt. Do research for a more technical answer.)I found these magnets for much less and they are worth the price for the benefit. Plus there are several in this pack and I use as many as I want. They seem to be the same strength, but smaller. The other brand would magnatize each other through the palm of my hand. These do as well, but are much thinner.I put 2 on opposite sides of my metal washing machine drum. They stay there through the washing because they are so strong and low profile. I use about 1/2 to 1/3 of the amount of laundry detergent compared to before. My whites don't seem winter but my black clothes are much darker and less faded looking.I don't have a metal bottom on my dishwasher, so I put 2 together with the metal filter between. ( see photo) They stay put. I don't believe the magnetic force of them is strong enough to grab knives or forks, unless I drop one in the bottom of the dishwasher.A warning. They are very strong. Keep them apart from eachother and keep the plastic disks. If they stick together you can't get them apart because they are so thin there is nothing to grab. Keep away from kids fingers. They snap together with a lot of force!! They seem to attract eachother at about 4-6 inches.Update...2 years later and the coating has rusted off. I’m buying them again to replace the ones I have. Really happy with them.

Good grief, these things are beyond STRONG!! They WILL attract to each other with so much force that if your finger is in the way, well... bummer for your finger, because it’s about to get the life pinched out of it! I accidentally let two touch after sliding one off the stack and reaped a lovely blood blister as a result. I asked my husband to help me get them apart because I needed them Allan’s I couldn’t budge em. I did explain to him that these durn things were insanely powerful and to be very careful. Watching him struggle to slide a butter knife between them was highly enjoyable. For some reason, the joined magnets repelled the butter knife, keeping it from the center of the magnets, so he looked quite bizarre trying to get it there. He then got the brainiac idea to slide them apart by stabilizing one against the counter and using both hands to slide the other off it. He was so impressed at their strength , he decided to hold one of the magnets at the end of the counter to see if the other would be pulled from several inches away. (Reminder, I TOLD him these were insanely strong... he fought to separate them, so he KNEW the attraction and I showed him my war wound... so...) needless to say, it didn’t end well for his fingers. That magnet flew so fast to hands his fingers had no time to move. All I heard was a loud snap and him yelping. Well... Darwin Award goes to...Anyway, I used these to make a trendy, magnetic spice rack and they are holding 4oz glass jars filled to the hilt with spices with no problem. They are worth every penny! Just be careful!!